I've been thinking really hard lately about replacing the AppleTV with the MacMini. I am going to use it to watch movies, tv shows and occasionally use the internet. I have a few concerns and questions about doing this. My first question is which MacMini should I get? Is there one that would be better? I'm looking into getting a refurbished one. How much RAM do I need? I'm not worried about the hard drive space because I will be using an external 1TB for most movies. The main difference between the 2 MacMinis is RAM, HD and video card memory. Would the video card memory help at all for a media center? I noticed the MacMini has a MiniDVI and a Mini DisplayPort. Is there a benefit in using one over the other? And it looks like the only audio out is a 1/8 audio jack correct? Does anyone know if the PS3 keyboard works on Macs? I was thinking about using that with the MacMini - http://www.bestbuy.com/site/olspage.jsp?skuId=8151037&type=product&id=1161733242109 Is there any other negatives in using a MacMini as a media center?